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Movable type road surface detection device and method using structured light

A detection device and structured light technology, applied in measuring devices, section drawing, surveying and navigation, etc., can solve the problems of increasing the risk of accidents, difficult to close the runway inspection, etc.

Active Publication Date: 2016-01-06
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual operation of large airports, it is difficult to frequently close the runway for inspection
The lack of inspection of the runway for a long time increases the risk of accidents caused by foreign objects intruding on the runway

Method used

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  • Movable type road surface detection device and method using structured light

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Embodiment Construction

[0050] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0051] working principle:

[0052] The present invention uses the projection of structured light on an ideal runway surface as parallel lines. In the event of FOD or runway imperfections, parallel lines can be distorted or interrupted. Based on this principle, by adjusting the distance between parallel lines and moving the structured light coverage of the vehicle, FOD detection can be realized in the entire runway area.

[0053] Relevant description of this patent:

[0054] 1. The control processing unit is realized by a processor.

[0055] A mobile pavement detection device using structured light includes:

[0056] One or more structured light generators fixed on the vehicle. The structured light generator generates laser light, which can project a specific structured light pattern. The l...

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Abstract

The invention relates to the field of active three-dimensional detection and image recognition, in particular to a movable type road surface detection device and method using structured light. The detection device and method aims at solving the problems existing in the prior art. According to the detection device and method, known structured light patterns are projected in an oriented mode, and two-dimension image detection is combined, so that invasive foreign matter, flatness and damage problems can be detected rapidly. The detection method comprises the steps that through an automobile-carried detection unit and a control and processing unit, a structured light generator projects the known structured light patterns to an area, to be detected, of a road surface in the detection process; meanwhile, the road surface covered by the structured light is shot through a camera, the control and processing unit calculates nonlinearity and non-continuity of the structured light patterns by extracting the structured light patterns projected to the detected area of the road surface, thereby whether the road surface has problems about flatness or invasive objects or not is judged, and accurate detection conducted on the whole detected area is achieved accordingly.

Description

technical field [0001] The invention relates to the field of active three-dimensional detection and image recognition, in particular to a mobile road surface detection device and method using structured light. Background technique [0002] The surface condition of the airport runway has a direct impact on the safety of flight takeoff and landing. The runway must be kept flat and clean, but runway damage and intrusion of foreign objects pose a serious threat to the safety of taking off and landing flights. Runway damage refers to problems such as runway weathering, cracking, breaking, and falling stones caused by various reasons such as aging and external forces. Invasive foreign objects refer to certain foreign substances, debris or objects that may damage the aircraft, such as metal parts, waterproof plastic sheets, broken stones, newspapers, bottles, luggage tags, etc. [0003] In order to ensure the safety of flight take-off and landing, the condition of the runway pave...

Claims

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Application Information

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IPC IPC(8): G01C7/04G01C11/00
CPCG01C7/04G01C11/00
Inventor 隋运峰杨晓嘉钟琦
Owner THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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